2020 CADILLAC XT4 instrument panel

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
152 CLIMATE CONTROLS
Caution (Continued)
stations clearly. The repairs would
not be covered by the vehicle
warranty.
Remote Start Climate Control
Operation : If equipped with remote
start, the climate control system may
run when the vehicle is started
remotely. The system will determine
the best mode and temperature
setting for operation. Once the vehicle
is started with the Engine Start/Stop
button, the climate control system will
begin to operate at the last customer
selected operating mode and
temperature. The rear defog may come
on during remote start based on cold
ambient conditions. The rear defog
indicator light does not come on
during a remote start.
If equipped, the heated seats will turn
on if it is cold outside or the
ventilated seats will turn on if it is hot
outside. The heated and ventilated
seat indicator lights may not come on
during a remote start. If equipped, the heated steering wheel will come on in
a remote start if it is cold outside. The
heated steering wheel indicator light
may not come on. See
Remote Vehicle
Start 015 and
Heated and Ventilated Front Seats 048.
Sensor
The solar sensor, on top of the
instrument panel near the windshield,
monitors the solar intensity.
The climate control system uses the
sensor information to adjust the
temperature, fan speed, recirculation,
and air delivery mode for best
comfort. If the sensor is covered, the automatic
climate control system may not work
properly.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
CLIMATE CONTROLS 153
Air Vents
Adjustable air vents are in the center
and on the sides of the instrument
panel, and on the rear of the center
console storage.
Move the slider knobs to change the
direction of or to close off the airf low.
Operation Tips
.Clear away any ice, snow, or leaves
from air inlets at the base of the
windshield that could block the
flow of air into the vehicle. .
Clear snow off the hood to
improve visibility and help
decrease moisture drawn into the
vehicle.
. Keep the path under the front
seats clear of objects to help
circulate the air inside of the
vehicle more effectively.
. Use of non-GM approved hood
deflectors can adversely affect the
performance of the system. Check
with your dealer before adding
equipment to the outside of the
vehicle.
. Do not attach any devices to the
air vent slats. This restricts airflow
and may cause damage to the air
vents.
Maintenance
Passenger Compartment
Air Filter
The filter reduces dust, pollen, and
other airborne irritants from outside
air that is pulled into the vehicle. The
filter should be replaced as part of
routine scheduled maintenance. See
Maintenance Schedule 0319.
See your dealer regarding replacement
of the filter.
Service
All vehicles have a label underhood
that identifies the refrigerant used in
the vehicle. The refrigerant system
should only be serviced by trained and
certified technicians. The air
conditioning evaporator should never
be repaired or replaced by one from a
salvage vehicle. It should only be
replaced by a new evaporator to
ensure proper and safe operation.
During service, all refrigerants should
be reclaimed with proper equipment.
Venting refrigerants directly to the

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
DRIVING AND OPERATING 167
Blizzard Conditions
Stop the vehicle in a safe place and
signal for help. Stay with the vehicle
unless there is help nearby. If possible,
use Roadside Service. SeeRoadside
Service 0340. To get help and keep
everyone in the vehicle safe:
. Turn on the hazard warning
flashers.
. Tie a red cloth to an outside
mirror.
{Warning
Snow can trap engine exhaust
under the vehicle. This may cause
exhaust gases to get inside. Engine
exhaust contains carbon monoxide
(CO), which cannot be seen or
smelled. It can cause
unconsciousness and even death.
If the vehicle is stuck in snow:
. Clear snow from the base of
the vehicle, especially any
blocking the exhaust pipe.
(Continued)
Warning (Continued)
.Open a window about 5 cm
(2 in) on the vehicle side that
is away from the wind, to
bring in fresh air.
. Fully open the air outlets on
or under the instrument
panel.
. Adjust the climate control
system to circulate the air
inside the vehicle and set the
fan speed to the highest
setting. See “Climate Control
Systems.”
For more information about CO, see
Engine Exhaust 0181.
To save fuel, run the engine for short
periods to warm the vehicle and then
shut the engine off and partially close
the window. Moving about to keep
warm also helps.
If it takes time for help to arrive,
when running the engine, push the
accelerator pedal slightly so the
engine runs faster than the idle speed. This keeps the battery charged to
restart the vehicle and to signal for
help with the headlamps. Do this as
little as possible, to save fuel.
If the Vehicle Is Stuck
Slowly and cautiously spin the wheels
to free the vehicle when stuck in sand,
mud, ice, or snow.
If stuck too severely for the traction
system to free the vehicle, turn the
traction system off and use the
rocking method. See
Traction Control/
Electronic Stability Control 0191.
{Warning
If the vehicle's tires spin at high
speed, they can explode, and you or
others could be injured. The vehicle
can overheat, causing an engine
compartment fire or other damage.
Spin the wheels as little as possible
and avoid going above 56 km/h
(35 mph).

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
200 DRIVING AND OPERATING
Resuming a Set Speed
If the ACC is set at a desired speed
and then the brakes are applied, ACC
is disengaged without erasing the set
speed from memory.
To begin using ACC again, move the
thumbwheel up toward RES+ briefly.
The vehicle returns to the previous set
speed.
.If the vehicle is moving, it returns
to the previous set speed.
. If the vehicle is stopped with the
brake pedal applied, move the
thumbwheel up toward RES+ and
release the brake pedal. ACC will
hold the vehicle until the
thumbwheel is moved up toward
RES+ or the accelerator pedal is
pressed.
A green ACC indicator and the set
speed display on the instrument
cluster. The vehicle ahead indicator
may be flashing if a vehicle ahead was
present and moved. See “Approaching
and Following a Vehicle ”later in this
section. Once ACC has resumed, if there is no
vehicle ahead, if the vehicle ahead is
beyond the selected following gap,
or if the vehicle has exited a sharp
curve, then the vehicle speed will
increase to the set speed.
Increasing Speed While ACC is at a
Set Speed
If ACC is already activated, do one of
the following:
.
Use the accelerator to get to the
higher speed. Move the
thumbwheel down toward SET– .
Release the control and the
accelerator pedal. The vehicle will
now cruise at the higher speed.
When the accelerator pedal is
pressed, ACC will not brake
because it is overridden. The ACC
indicator will turn blue on the
instrument panel and HUD,
if equipped. See Vehicle Messages
0 130.
. Move the thumbwheel up toward
RES+ until the desired set speed
appears on the display, then
release it. .
To increase vehicle speed in small
increments, move the thumbwheel
up toward RES+ to the first detent.
For each press, the vehicle goes
1 km/h (1 mph) faster.
. To increase vehicle speed in larger
increments, move the thumbwheel
up toward RES+ to the second
detent. For each press, the vehicle
speed increases to the next 5 km/h
(5 mph) mark on the speedometer.
The set speed can also be increased
while the vehicle is stopped.
. If stopped with the brake applied,
move the thumbwheel up toward
RES+ until the desired set speed is
displayed.
. If ACC is holding the vehicle at a
stop and there is another vehicle
directly ahead, moving the
thumbwheel up toward RES+ will
increase the set speed. Moving the
thumbwheel up toward RES+ when
there is no longer a vehicle ahead
will cause the ACC to resume.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
DRIVING AND OPERATING 231
.Automatic Emergency
Braking (AEB)
. Intelligent Brake Assist (IBA)
. Front Pedestrian Braking (FPB)
If equipped with Lane Change Alert
(LCA), the LCA detection zones that
extend back from the side of the
vehicle do not move further back
when a trailer is towed. Use caution
while changing lanes when towing a
trailer.
If equipped with Rear Cross Traffic
Alert (RCTA), use caution while
backing up when towing a trailer, as
the RCTA detection zones that extend
out from the back of the vehicle do
not move further back when a trailer
is towed.
{Warning
To prevent serious injury or death
from carbon monoxide (CO), when
towing a trailer: (Continued)
Warning (Continued)
.Do not drive with the liftgate,
trunk/hatch, or rear-most
window open.
. Fully open the air outlets on
or under the instrument
panel.
. Adjust the climate control
system to a setting that
brings in only outside air. See
“Climate Control Systems” in
the Index.
For more information about carbon
monoxide, see Engine Exhaust
0 181.
Towing a trailer requires experience.
The combination of the vehicle and
trailer is longer and not as responsive
as the vehicle itself. Get used to the
handling and braking of the
combination by driving on a level road
surface before driving on public roads.
The trailer structure, the tires, and the
brakes must be all be rated to carry
the intended cargo. Inadequate trailer equipment can cause the combination
to operate in an unexpected or unsafe
manner. Before driving, inspect all
trailer hitch parts and attachments,
safety chains, electrical connectors,
lamps, tires, and mirrors. See
Towing
Equipment 0236. If the trailer has
electric brakes, start the combination
moving and then manually apply the
trailer brake controller to check that
the trailer brakes work. During the
trip, occasionally check that the cargo
and trailer are secure and that the
lamps and any trailer brakes are
working.
Towing with a Stability Control
System
When towing, the stability control
system might be heard. The system
reacts to vehicle movement caused by
the trailer, which mainly occurs
during cornering. This is normal when
towing heavier trailers.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
VEHICLE CARE 241
Vehicle Care
General Information
General Information . . . . . . . . . . . . . 242
California Proposition65 Warning . . . . . . . . . . . . . . . . . . . . . 242
California Perchlorate Materials Requirements . . . . . . . . . . . . . . . . . . . 243
Accessories and Modifications . . . . . . . . . . . . . . . . . . . 243
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . . . . . . 243
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . . . . . . 246
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . 247
Engine Oil Life System . . . . . . . . . . . 249
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Engine Air Filter Life System . . . . 250
Engine Air Cleaner/Filter . . . . . . . . . 251
Cooling System . . . . . . . . . . . . . . . . . . . 252
Engine Overheating . . . . . . . . . . . . . . 255
Washer Fluid . . . . . . . . . . . . . . . . . . . . . 256
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . 258
Battery - North America . . . . . . . . . 259 All-Wheel Drive . . . . . . . . . . . . . . . . . . 260
Starter Switch Check . . . . . . . . . . . . . 260
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . . . . . 260
Wiper Blade Replacement . . . . . . . 261
Windshield Replacement . . . . . . . . 262
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . 262
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . 263
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . 264
LED Lighting . . . . . . . . . . . . . . . . . . . . . 264
Front Turn Signal Lamps . . . . . . . . 264
Back-Up Lamps . . . . . . . . . . . . . . . . . . . 264
Electrical System
Electrical System Overload . . . . . . 265
Fuses and Circuit Breakers . . . . . . 265
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Instrument Panel Fuse Block . . . . 269
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
All-Season Tires . . . . . . . . . . . . . . . . . . 273
Winter Tires . . . . . . . . . . . . . . . . . . . . . . 273
Summer Tires . . . . . . . . . . . . . . . . . . . . 273
Tire Sidewall Labeling . . . . . . . . . . . 274
Tire Designations . . . . . . . . . . . . . . . . . 276 Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . . . . . 276
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 279
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . . . . . . 280
Tire Pressure Monitor System . . . 281
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . . . . . . 281
Tire Inspection . . . . . . . . . . . . . . . . . . . 285
Tire Rotation . . . . . . . . . . . . . . . . . . . . . 286
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
Buying New Tires . . . . . . . . . . . . . . . . 287
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . 289
Uniform Tire Quality Grading . . . 289
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 291
Wheel Replacement . . . . . . . . . . . . . . 291
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . 292
If a Tire Goes Flat . . . . . . . . . . . . . . . . 292
Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . . . 293
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . . . 300
Tire Changing . . . . . . . . . . . . . . . . . . . . . 300
Compact Spare Tire . . . . . . . . . . . . . . 305
Jump Starting
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . . . 306

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
244 VEHICLE CARE
If equipped with remote vehicle start,
open the hood before performing any
service work to prevent remote
starting the vehicle accidentally. See
Remote Vehicle Start015.
Keep a record with all parts receipts
and list the mileage and the date of
any service work performed. See
Maintenance Records 0331.
Caution
Even small amounts of
contamination can cause damage to
vehicle systems. Do not allow
contaminants to contact the fluids,
reservoir caps, or dipsticks.
Hood
{Warning
For vehicles with auto engine stop/
start, turn the vehicle off before
opening the hood. If the vehicle is
on, the engine will start when the
hood is opened. You or others could
be injured.
{Warning
Components under the hood can
get hot from running the engine. To
help avoid the risk of burning
unprotected skin, never touch these
components until they have cooled,
and always use a glove or towel to
avoid direct skin contact.
Clear any snow from the hood before
opening.
To open the hood: 1. Pull the hood release lever with the
isymbol. It is on the
lower left side of the instrument
panel.
2. Go to the front of the vehicle and locate the secondary release
lever under the front center of
the hood. Push the secondary
hood release lever to the right to
release.
3. After you have partially lifted the hood, the gas strut system will
automatically lift the hood and
hold it in the fully open position.
To close the hood: 1. Before closing the hood, be sure all filler caps are on properly,
and all tools are removed.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
268 VEHICLE CARE
FusesUsage
26 Transmission control module/Ignition
27 Instrument panel body/Ignition
28 Rear wiper
29 Trailer ignition
30 Malfunction indicator lamp
32 Rear drive control module 1
33 Front heated seat
34 Handsfree/Window switch
35 Diesel exhaust fuel heater
36 Fuel module
39 Massage
40 Steering column lock
41 –
43 Heated steering wheel
44 Seat ventilation Fuses
Usage
46 Engine control module/Ignition
48 Rear drive control module 2
49 Heating ventilation/ Air conditioning
blower motor
50 –
51 –
54 –
55 –
56 Starter motor
57 –
58 –
59 High-beam headlamps left/right
60 Trailer interface module 1
61 –
62 –
63 – Fuses
Usage
65 Air conditioning control
67 –
68 –
69 –
70 Trailer park lamp
72 Starter pinion
75 Engine control module
76 Powertrain off engine
78 Horn
79 Washer pump
81 Transmission control module/Engine
control module/
Cooling pump
82 Nitrogen oxide sensor
83 Ignition coil
84 Powertrain on engine
85 Shunt
86 Shunt